|
|
John Mellerick wrote:
>
> Well, in August of this year, I did pretty much the same set of experiments,
> and wrote up a short article, which you can read at:
>
> http://www.redbrick.dcu.ie/~element/areaLights/
>
> Now, I didn't have all my facts straight when I wrote it, and the subsequent
> flame war that was targeted at me on povray.general quickly pointed out
> that Povray's arealights are *not* designed to give area illumination, but
> simply to simulate area *shadows*. I agree though, a source of area
> illumination in Povray would be most welcome...
And slow. Which, as I recall, was half the reason for the "flame war";
you claimed reasonable speeds for your point light arrays, but you were
using very simple scenes for your tests, and anyone used to creating
complex scenes in POV-Ray (or any other raytracer I've seen, for that
matter) knows that adding more lights can have a major impact on render
times.. a fact which you stubbornly refused to accept, based on your
limited testing.
Generally speaking, I don't think a point light array object is needed;
they are easily written with loops, which would also provide more
control over the individual lights in the array than an object's syntax
probably would. The only real benefit I can see to having such an object
would be if POV-Ray could make reasonable assumptions about a predefined
light array that would make rendering faster than an improvised one, but
I have no idea whether this would be the case.
-Xplo
Post a reply to this message
|
|